Scientificblogging.com math whiz Garth Sundem was on Good Morning America today - even better, Diane Sawyer referred to him as both 'genius' and 'charming.' I bet she says that to all the writers! Garth talked about his book, Geek Logik and did live demos of his equations. Congratulations, Garth! Scientificblogging.com math whiz Garth Sundem was on Good Morning America today - even better, Diane Sawyer referred to him as both 'genius' and 'charming.' I bet she says that to all the writers! Garth talked about his book, Geek Logik and did live demos of his equations. Congratulations, Garth!